spatial: SSI – R documentation

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SSI

Simulates Sequential Spatial Inhibition Point Process

Simulates SSI (sequential spatial inhibition) point process.

SSI(n, r)

`n`	number of points
`r`	inhibition distance

uses the region set by ppinit or ppregion.

list of vectors of x and y coordinates

uses the random number generator.

will never return if r is too large and it cannot place n points.

Ripley, B. D. (1981) Spatial Statistics. Wiley.

Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.

towns <- ppinit("towns.dat")
par(pty = "s")
plot(Kfn(towns, 10), type = "b", xlab = "distance", ylab = "L(t)")
lines(Kaver(10, 25, SSI(69, 1.2)))

Functions for Kriging and Point Pattern Analysis

v7.3-14

GPL-2 | GPL-3

Authors

Brian Ripley [aut, cre, cph], Roger Bivand [ctb], William Venables [cph]

Initial release

2021-04-17